Feb 16, 2019 · null! is used to assign null to non-nullable variables, which is a way of promising that the variable won't be null when it is actually used. I'd use null! in a Visual Studio …

Apr 29, 2009 · The surprise expressed by JavaScript developers at typeof null === "object" is the result of an impedance mismatch (or abstraction leak) between a weakly-typed language …

Feb 5, 2012 · @RogerWang - Good question! The answer is that null isn't an object, it's an object reference (a blank one). It's the only object reference we can write literally in code. So Object …

Apr 25, 2010 · The null reference is the only possible value of an expression of null type. The null reference can always be cast to any reference type. In practice, the programmer can ignore …

Apr 14, 2011 · Which is why you can only use IS NULL/IS NOT NULL as predicates for such situations. This behavior is not specific to SQL Server. All standards-compliant SQL dialects …

Mar 6, 2012 · The reasoning is that a null means "unknown", so the result of any comparison to a null is also "unknown". So you'll get no hit on rows by coding where my_column = null. SQL …

Feb 24, 2011 · typeof null returning "object" makes sense. The only other value that would make sense would be "null", since it definitely should return something different from typeof …

Jan 4, 2024 · Comparing null === 0 or null > 0 or null < 0 will result in false. But as null is also an object we can detect it as a null. I made a more complex function natureof witch will do better …

Apr 11, 2011 · That is one interpretaion of NULL. In certain contexts, it is clearly the correct one. But SQL is not consistent when it comes to NULL, so there are contexts where NULL means …

A constant expression of type int with the value 0, or an expression of this type, cast to type void * is a null pointer constant, which if converted to a pointer becomes a null pointer. It is …